Enable/disable data connection in android programmatically

Question

I want to enable/disable the data connection programmatically. I've used the following code:

void enableInternet(boolean yes)
{
    ConnectivityManager iMgr = (ConnectivityManager)getSystemService(Context.CONNECTIVITY_SERVICE);
    Method iMthd = null;
    try {
        iMthd = ConnectivityManager.class.getDeclaredMethod("setMobileDataEnabled", boolean.class);
        } catch (Exception e) {
               } 
    iMthd.setAccessible(false);

    if(yes)
     {

                try {
                    iMthd.invoke(iMgr, true);
                    Toast.makeText(getApplicationContext(), "Data connection Enabled", Toast.LENGTH_SHORT).show();
                } catch (IllegalArgumentException e) {
                    // TODO Auto-generated catch block
                     dataButton.setChecked(false);
                     Toast.makeText(getApplicationContext(), "IllegalArgumentException", Toast.LENGTH_SHORT).show();

                } catch (IllegalAccessException e) {
                    // TODO Auto-generated catch block
                    Toast.makeText(getApplicationContext(), "IllegalAccessException", Toast.LENGTH_SHORT).show();

                    e.printStackTrace();
                } catch (InvocationTargetException e) {
                    // TODO Auto-generated catch block
                     dataButton.setChecked(false);
                     Toast.makeText(getApplicationContext(), "InvocationTargetException", Toast.LENGTH_SHORT).show();

                }

     }
    else
     {
        try {
            iMthd.invoke(iMgr, true);
            Toast.makeText(getApplicationContext(), "Data connection Disabled", Toast.LENGTH_SHORT).show();
            } catch (Exception e) {
                   dataButton.setChecked(true);
                Toast.makeText(getApplicationContext(), "Error Disabling Data connection", Toast.LENGTH_SHORT).show();
                                    }
     }
}

It's working without any errors in the emulator but, I'm getting "InvocationTargetException" when I try to run it on a real device. I'm using API level 8 to build the application.

Pathology

What is the result of e.getMessage() on the InvocationTargetException? How about the enclosed exception? – Brittenybrittingham

What device are you running this on and what version of Android OS is installed on that device. – Rihana

I'm running it on a Samsung Galaxy S and the Android OS is 2.2 – Pathology

Answer 1

This code sample should work for android phones running gingerbread and higher:

private void setMobileDataEnabled(Context context, boolean enabled) throws ClassNotFoundException, NoSuchFieldException, IllegalAccessException, NoSuchMethodException, InvocationTargetException {
    final ConnectivityManager conman = (ConnectivityManager)  context.getSystemService(Context.CONNECTIVITY_SERVICE);
    final Class conmanClass = Class.forName(conman.getClass().getName());
    final Field connectivityManagerField = conmanClass.getDeclaredField("mService");
    connectivityManagerField.setAccessible(true);
    final Object connectivityManager = connectivityManagerField.get(conman);
    final Class connectivityManagerClass =  Class.forName(connectivityManager.getClass().getName());
    final Method setMobileDataEnabledMethod = connectivityManagerClass.getDeclaredMethod("setMobileDataEnabled", Boolean.TYPE);
    setMobileDataEnabledMethod.setAccessible(true);

    setMobileDataEnabledMethod.invoke(connectivityManager, enabled);
}

Dont forget to add this line to your manifest file

<uses-permission android:name="android.permission.CHANGE_NETWORK_STATE"/>

Alroy

what parameter need to send data enable and data disable? – Seductive

I got java.lang.reflect.InvocationTargetException error after run this code. – Amerce

@ReferenceNotFound Are you sure you added the permission? 11 other people or more got i working, including me. – Alroy

Thanks for reply but, I have already add permission and I am using Android 2.2 – Amerce

That is why it doesn't work. This workaround only works for Gingerbread and higher, which means you have to be on Android 2.3 or higher. Sorry! – Alroy

For android versions less than 2.3 we can use the java reflection method to enable/disable data connection. Refer #11663478. – Pathology

+1, your method worked very well for me. Thanks, is there anyway I can set GPS on Off programmatically same as you did Internet on/off programmatically like above ? – Restriction

@TobiasMoeThorstensen I tried adding this code in the AppWidgetProvider OnReceive method but I am getting W/ActivityManager(444): Killing ProcessRecord{a6bdce00 1809:com.rajaraman.quicksettings/u0a10064}: background ANR Do I have to run this in a thread to avoid ANR? – Schramm

Running this in AsyncTask does not throw background ANR. – Schramm

Can someone tell me what other changes are required with using the code... like namespaces that need to be imported, etc... – Garton

I have a theoretical doubt. Is the above code an example of the usage of reflection? If not, then what do you call such a method employed here as? – Foolish

Confirmed working on 4.4.2. However, lines 4-7 seem redundant as we already have a ConnectivityManager object. Is there any meaning to this? – Exciseman

For line Class.forName(conman.getClass().getName()); I have got a java.lang.ClassNotFoundException. How to solve it ? – Dewittdewlap

What is the phone is dual sim? – Makeweight

Does it turn off the radio connection (GSM) too ? – Gobble

java.lang.NoSuchMethodException: setMobileDataEnabled [boolean] – Spur

@PrakashSharma The method or Api might have been deprecated. PLease consider that this post is from 2012. – Alroy

Answer 2

@riHaN JiTHiN your program works fine for 2.3 and above, But it needs a small change in 'else' statement:

else
     {
        try {
            iMthd.invoke(iMgr, true);

the 'true' should be changed to 'false'

iMthd.invoke(iMgr, false);

Ingratiating